Examples of java.text.DecimalFormat

java.text.DecimalFormat
t out a number using the localized number, integer, currency, // and percent format for each locale Locale[] locales = NumberFormat.getAvailableLocales(); double myNumber = -1234.56; NumberFormat form; for (int j=0; j<4; ++j) { System.out.println("FORMAT"); for (int i = 0; i < locales.length; ++i) { if (locales[i].getCountry().length() == 0) { continue; // Skip language-only locales } System.out.print(locales[i].getDisplayName()); switch (j) { case 0: form=NumberFormat.getInstance(locales[i]); break; case 1: form=NumberFormat.getIntegerInstance(locales[i]); break; case 2: form=NumberFormat.getCurrencyInstance(locales[i]); break; default: form=NumberFormat.getPercentInstance(locales[i]); break; } if (form instanceof DecimalFormat) { System.out.print(": " + ((DecimalFormat) form).toPattern()); } System.out.print(" -> " + form.format(myNumber)); try { System.out.println(" -> " + form.parse(form.format(myNumber))); } catch (ParseException e) {} } } @see Java Tutorial @see NumberFormat @see DecimalFormatSymbols @see ParsePosition @version 1.88 06/26/06 @author Mark Davis @author Alan Liu


  if (_formatSymbols != null) {
      // The name cannot be null - use empty string instead
      if (name == null) name = EMPTYSTRING;


      DecimalFormat df = (DecimalFormat)_formatSymbols.get(name);
      if (df == null) df = (DecimalFormat)_formatSymbols.get(EMPTYSTRING);
      return df;
  }
  return(null);
    }

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        grpSep = ',';
        grpSize = 3;
    } else {
        DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(l);
        grpSep = dfs.getGroupingSeparator();
        DecimalFormat df = (DecimalFormat) NumberFormat.getIntegerInstance(l);
        grpSize = df.getGroupingSize();
    }
      }


      // localize the digits inserting group separators as necessary
      for (int j = 0; j < len; j++) {

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                break;
            case 5: case 6:// integer
                newFormat = NumberFormat.getIntegerInstance(locale);
                break;
            default: // pattern
                newFormat = new DecimalFormat(segments[3].toString(), DecimalFormatSymbols.getInstance(locale));
                break;
            }
            break;
        case 3: case 4: // date
            switch (findKeyword(segments[3].toString(), dateModifierList)) {

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  public static String getSize(int bytes) {
    if (bytes > 0) {
      double mb = bytes / (1024d * 1024d);
      double kb = bytes / 1024d;


      NumberFormat format = new DecimalFormat(Messages.OwlUI_SIZE_FORMAT);


      if (mb >= 1)
        return NLS.bind(Messages.OwlUI_N_MB, format.format(mb));


      if (kb >= 1)
        return NLS.bind(Messages.OwlUI_N_KB, format.format(kb));


      return NLS.bind(Messages.OwlUI_N_BYTES, bytes);
    }


    return null;

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                return getLoaded(props);


            String num = "k";


            try {
                DecimalFormat nf = new DecimalFormat(
                        "###,###,###,##0.0;(#,##0.0)");


                double i = Double.parseDouble(props.getProperty("size"));
                i = i / 1024.0;


                num = nf.format(i) + num;
            } catch (NumberFormatException e) {
            }


            return num;
        }

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  /**
   * @param n numbero of pages
   * @return
   */
    private DecimalFormat getFileNumberFormatter(Integer n){
      DecimalFormat retVal = null;
      if(n!=null){
        retVal = getFileNumberFormatter(n.intValue());
      }else{
        retVal = new DecimalFormat();
        retVal.applyPattern("00000");
      }
      return retVal;
    }

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    /**
     * @param n number of pages
     * @return the DecimalFormat
     */
    private DecimalFormat getFileNumberFormatter(int n){
      DecimalFormat retVal = new DecimalFormat();
      try {
        retVal.applyPattern(Integer.toString(n).replaceAll("\\d", "0"));
    } catch (Exception fe) {
      retVal.applyPattern("00000");
    }
    return retVal;
    }

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    /**
     * @param arg0 the input string of the type "####"
     * @return
     */
    private DecimalFormat getFileNumberFormatter(String arg0){
      DecimalFormat retVal = new DecimalFormat();
      try {
        if(arg0!=null && arg0.length()>0){
          retVal.applyPattern(arg0.replaceAll("#", "0"));
        }else{
          retVal.applyPattern("00000");
        }
    } catch (Exception fe) {
      retVal.applyPattern("00000");
    }
    return retVal;
    }

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                Date end = new Date();
                long duration = end.getTime() - start.getTime();
                DateFormat df = new SimpleDateFormat( dFormat );
                BigDecimal resultF = BigDecimal.valueOf( (duration * 1.00) / (loops * 1.00) )
                        .setScale( 2, BigDecimal.ROUND_HALF_UP );
                DecimalFormat dcf = new DecimalFormat( "###.##" );


                msgs[0] = adapters[i].getClass().getName() + ';' + df.format( start ) + ';' + df.format( end ) + ';'
                        + duration + ";" + dcf.format( resultF );
                msgs[1] = "-1";


                if ( result == null || !(result instanceof ObjectBean)
                        || !((ObjectBean) result).getTheString().equals( "Accepted" ) )
                {

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      int total = event.getWorkItemRep().getWorkItemCount(activityInstId);
      int finishCount = event.getWorkItemRep().getFinishedWorkItemCount(activityInstId);
      
      double c = Double.parseDouble(String.valueOf(finishCount)) / total;


      DecimalFormat df1 = new DecimalFormat("##.0000"); // ##.0000%  百分比格式，后面不足2位的用0补齐
      String d = df1.format(c);
      
      double finishPercent = Double.parseDouble(d)*100;
      
      double mustPercent = activityXml.getFinishRequiredPercent();
      if(finishPercent >= mustPercent)

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